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What is use of eof() ?

  • Returns true if a file open for reading has reached the next character.
  • Returns true if a file open for reading has reached the next word.
  • Returns true if a file open for reading has reached the end.
  • Returns true if a file open for reading has reached the middle.

Answer: Option C

Similar Questions :

1. ios::trunc is used for ?

  • If the file is opened for output operations and it already existed, no action is taken.
  • If the file is opened for output operations and it already existed, its previous content is deleted and replaced by the new one.
  • If the file is opened for output operations and it already existed, then a new copy is created.
  • None of above

Answer: Option B

2. Which among following is used to open a file in binary mode ?

  • ios:app
  • ios::out
  • ios::in
  • ios::binary

Answer: Option D

Explanation:

ios:app -> All output operations are performed at the end of the file, appending the content to the current content of the file.

ios::out -> Open for output operations.

ios::in -> Open for input operations.

3. Which among is used for positioning relative to the beginning of a stream ?

  • ios::start
  • ios::beg
  • ios::begin
  • ios::beginning

Answer: Option B

4. Which functions allow to change the location of the get and put positions ?

  • sg() and sp()
  • sekg() and sekp()
  • gog() and gop()
  • seekg() and seekp()

Answer: Option D

5. Which among following is correct syntax of closing a file in c++ ?

  • myfile$close();
  • myfile@close();
  • myfile:close();
  • myfile.close();

Answer: Option D

Read more from - C++ File Handling Questions Answers
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